21969970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{67}}^1\times {\mathrm{271}}^1$

素因数の和:367

約数の個数: 48

約数和(自身を含む): 44279424

約数和(自身を除く): 22309454

約数列:

[1, 2, 5, 10, 11, 22, 55, 67, 110, 121, 134, 242, 271, 335, 542, 605, 670, 737, 1210, 1355, 1474, 2710, 2981, 3685, 5962, 7370, 8107, 14905, 16214, 18157, 29810, 32791, 36314, 40535, 65582, 81070, 90785, 163955, 181570, 199727, 327910, 399454, 998635, 1997270, 2196997, 4393994, 10984985, 21969970]

約数ペア:

[(1, 21969970), (2, 10984985), (5, 4393994), (10, 2196997), (11, 1997270), (22, 998635), (55, 399454), (67, 327910), (110, 199727), (121, 181570), (134, 163955), (242, 90785), (271, 81070), (335, 65582), (542, 40535), (605, 36314), (670, 32791), (737, 29810), (1210, 18157), (1355, 16214), (1474, 14905), (2710, 8107), (2981, 7370), (3685, 5962)]